It was Crick and Watson who worked out the structure of DNA in the 1950s, but its discovery was made nearly 100 years previously by a Swiss physician called Frederick Miescher.
The residents will range in nationality, cultural, religion, age, sex, political association, socio-economic backgrounds, etc. The Assisted Living Federation of America reports that the average age of an assisted living resident is 86.9 years (female average age 87.3; male average age 85.7). Female residents (73.6%) outnumber male residents by almost 3 to 1.
A mature CCRC (over 10 years old) will have an independent living population with an average age of between 85 and 87. Both singles and couples enter all CCRCs. The percentage of couples at entry can range from as low as 10% to as high as 70%.